Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

OSError: open failed

See original GitHub issue

I just built a new system with a Wraith Prism cooler and stumbled across this fantastic tool in searching for a way to change the colour scheme under Linux. However, I’m getting an OSError: open failed error when trying to send commands.

OS is Ubuntu 20.04 Processor AMD Ryzen 7 3800x MoBo: Gigabyte Aorus x570 Elite

user@system:~$ lsusb | grep 2516:0051
Bus 003 Device 003: ID 2516:0051 Cooler Master Co., Ltd.

Command resulting in error:

user@system:~$ cm-rgb-cli set logo --mode=static --color=#ff4f00 --brightness=3 fan --mode=static --color=#ff4f00 --brightness=3 ring --mode=static --color=#ff4f00 --brightness=3
Traceback (most recent call last):
  File "/home/user/.local/bin/cm-rgb-cli", line 175, in <module>
    main_group()
  File "/home/user/.local/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/user/.local/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/jeff/.local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/user/.local/lib/python3.8/site-packages/click/core.py", line 1268, in invoke
    Command.invoke(self, ctx)
  File "/home/user/.local/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/user/.local/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/user/.local/lib/python3.8/site-packages/click/decorators.py", line 21, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/user/.local/bin/cm-rgb-cli", line 13, in setup_group
    'ctrl': CMRGBController(),
  File "/home/user/.local/lib/python3.8/site-packages/cm_rgb/ctrl.py", line 54, in __init__
    self.__init_hid_device()
  File "/home/user/.local/lib/python3.8/site-packages/cm_rgb/ctrl.py", line 64, in __init_hid_device
    self.device.open_path(device_list[0]["path"])
  File "hid.pyx", line 72, in hid.device.open_path
OSError: open failed

Please let me know what else I can provide to help debug this issue.